This broad range of HVAC duct smoke detectors from Honeywell System Sensor combine an impressive collection of innovations to greatly simplify HVAC system monitoring. One unit can accommodate multiple installation footprints to overcome mounting constraints. Plug-in sampling tubes speed up and simplify installation without tools. Broad temperature and humidity ranges accommodate exposure to environmental extremes. Easily visible status indications, readily accessible test feature, and multiple compatible accessories simplify testing and maintenance. With unmatched flexibility and reliable performance, these sensors can adjust to fit any application.
The D4120, 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork. This unit senses smoke even in the most challenging conditions, operating in air flow speeds from 100 to 4,000 feet per minute, temperatures of–4°F to 158°F, and a humidity range of 0 to 95% (non-condensing). A plug-in sensor head offers improved false alarm immunity and simple installation, testing and maintenance. The improved cover design isolates the sensor head from the low-flow feature for simple maintenance.
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